Spatial force system acting on conventional four-bar linkage type of mounting strain clamps is analysed to find the cause of damage.

本文对传统的四连杆式紧线器进行了空间力系分析，找到了致其破坏的力学因素。

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This paper discusses a new spatial structure-composite grid slab column structure, which is designed to transform single way force into two-way force to form a spatial forcing system.

现讨论一种新型空间结构—组合式网格板柱结构，它使单向受力变为双向受力，从而形成三维受力体系。

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Urban system is the spatial carrier of FDI, and FDI is the motive force of urban system change.

城市体系是FDI的空间载体，FDI是城市体系演化的重要动力。

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